With strong blue suppression, which extends into the blue-green, clouds in the sky look very natural, but not yet dramatic. Distant views with light haze become clearer. An ideal filter, especially for landscape and plant photographs. Its filter factor is approximately 2.
MRC (Multi-Resistant Coating) by B+W is not only an extraordinarily effective multiple layer coating, it is also harder than glass, so that it protects filters from scratches (for instance when cleaning the filters), and it is also water and dirt repellent, thus facilitating filter maintenance.